[R] [R-pkgs] X2R: R-compatible output routines from C, ADMB, Fortran to R

From: Michael H. Prager <Mike.Prager_at_noaa.gov>
Date: Tue 24 Oct 2006 - 14:35:38 GMT


We announce the availability of three related software libraries: C2R, ADMB2R, and For2R (together, X2R). Each contains output routines to simplify transfer of complicated data structures from models written in a compiled language to R. The user's data can be written as a structured ASCII file which, when read by R (note 1) with a single dget() function call, will become an R data object of type list. The list, of course, may contain components such as data frames, matrices, and other lists.

These are NOT R packages; rather they are subroutine libraries to be used with programmers' own modeling codes. Limited testing indicates that they are compatible with S-PLUS, as well (note 1, note 2).

Languages supported are Fortran 95 (with For2R), C and C++ (with C2R) and AD Model Builder (with ADMB2R) (note 1, note 3). Source code and users' manuals are supplied.

For those working in fish stock assessment, we anticipate releasing soon a related group of R functions, FishGraph. The FishGraph functions create graphs useful in analysis of fisheries stock assessments whose output has been saved with X2R. We have been using FishGraph for several years and are now completing the documentation.

This work has been tested and used by the authors. However, any software may contain bugs, and these works are classified by NOAA as "Experimental Products." Although the software is supplied with no warranty whatsoever, bug reports, suggestions, and extensions are solicited (send to Prager or Martin). The authors will attempt to fix all bugs promptly and to add requested features.

Software is now available at CRAN, http://cran.r-project.org/ , and is expected to propagate to mirrors shortly. Look under "Software / Other" for the current X2R distribution.

Michael H. Prager - mike.prager@noaa.gov Andi Stephens
Southeast Fisheries Science Center
National Marine Fisheries Service, NOAA
101 Pivers Island Road
Beaufort, North Carolina 28516 USA

Jennifer L. Martin - jennifer.martin@noaa.gov Northeast Fisheries Science Center
National Marine Fisheries Service, NOAA
166 Water Street
Woods Hole, Massachusetts 02543 USA


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